2540025 has 48 divisors (see below), whose sum is σ = 4821120. Its totient is φ = 1310400.

The previous prime is 2540011. The next prime is 2540033. The reversal of 2540025 is 5200452.

It is not a de Polignac number, because 2540025 - 2⁶ = 2539961 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35740 + ... + 35810.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^2540025 is an apocalyptic number.

2540025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2540025 is a deficient number, since it is larger than the sum of its proper divisors (2281095).

2540025 is a wasteful number, since it uses less digits than its factorization.

2540025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2540025 is about 1593.7455882292. The cubic root of 2540025 is about 136.4413466155.

Adding to 2540025 its reverse (5200452), we get a palindrome (7740477).

It can be divided in two parts, 25400 and 25, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 2540025 in words is "two million, five hundred forty thousand, twenty-five".